An environmental researcher wants to investigate whether a new municipal public-awareness campaign increases water-saving consciousness in domestic households. A sample of 14 households are monitored and their water-conservation practices are scored on a scale from 1 (very poor) to 30 (excellent) both in the week immediately prior to the campaign and in the week immediately following the campaign. The researcher hypothesized that the post-campaign conservation scores would be significantly higher than the pre-campaign scores.
Explain how the data from this investigation could be analysed. Give reasons for your answer. You should refer to the following:
Practise AQA A Level Psychology Inferential testing (A-level only) with exam-style questions for A Level Psychology. 123 questions, matched to the AQA A Level Psychology (7182) specification and written in Paper 1, Paper 2 and Paper 3 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.